In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Men jailed over nightclub contract killing

A masked contract killer who shot his target outside a Wollongong nightclub before chasing him inside and finishing the job in front of shocked patrons and staff has been sentenced to life in jail.

But Justice Natalie Adams rejected a crown submission to also impose a life sentence on the man who organised the hit, who's previously served time for killing a man and wounding nine people in a shopping centre.

In the NSW Supreme Court on Friday, the judge sentenced shooter Tevi Koloamatangi, 47, to life - meaning he'll die in prison - while Zlatan Popovic, 45, was jailed for 34 years with a non-parole period of 26 years.

They were found guilty in September of the brazen murder of Dragan Sekuljica, 28, who was shot dead by the older man at Splashes nightclub in September 2007.

The hearing was a retrial after they won an appeal over the same verdicts delivered at a 2014 trial.

The sentences imposed on Friday were also the same terms they received after the first trial.

Before Justice Adams began to read her decision, Koloamatangi's lawyer said her client did not want to be present in court to hear it.